拡張データをフィルタリングする(.NET)

外部アプリケーションは、文字列、数値、3D 点、距離、画層名といったデータを AutoCAD オブジェクトにアタッチすることができます。このデータを拡張データ(XDATA)といいます。特定のアプリケーションによって追加されたデータを含むオブジェクトを選択できます。

XDATAを含む円を選択する

次の例は、"MY_APP" アプリケーションが追加した拡張データ(XDATA)を含む円を選択します。

VB.NET

Imports Autodesk.AutoCAD.Runtime
Imports Autodesk.AutoCAD.ApplicationServices
Imports Autodesk.AutoCAD.DatabaseServices
Imports Autodesk.AutoCAD.EditorInput
 
<CommandMethod("FilterXdata")> _
Public Sub FilterXdata()
    '' Get the current document editor
    Dim acDocEd As Editor = Application.DocumentManager.MdiActiveDocument.Editor

    '' Create a TypedValue array to define the filter criteria
    Dim acTypValAr(1) As TypedValue
    acTypValAr.SetValue(New TypedValue(DxfCode.Start, "Circle"), 0)
    acTypValAr.SetValue(New TypedValue(DxfCode.ExtendedDataRegAppName, _
                                       "MY_APP"), 1)

    '' Assign the filter criteria to a SelectionFilter object
    Dim acSelFtr As SelectionFilter = New SelectionFilter(acTypValAr)

    '' Request for objects to be selected in the drawing area
    Dim acSSPrompt As PromptSelectionResult
    acSSPrompt = acDocEd.GetSelection(acSelFtr)

    '' If the prompt status is OK, objects were selected
    If acSSPrompt.Status = PromptStatus.OK Then
        Dim acSSet As SelectionSet = acSSPrompt.Value

        Application.ShowAlertDialog("Number of objects selected: " & _
                                    acSSet.Count.ToString())
    Else
        Application.ShowAlertDialog("Number of objects selected: 0")
    End If
End Sub

C#

using Autodesk.AutoCAD.Runtime;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
 
[CommandMethod("FilterXdata")]
public static void FilterXdata()
{
    // Get the current document editor
    Editor acDocEd = Application.DocumentManager.MdiActiveDocument.Editor;

    // Create a TypedValue array to define the filter criteria
    TypedValue[] acTypValAr = new TypedValue[2];
    acTypValAr.SetValue(new TypedValue((int)DxfCode.Start, "Circle"), 0);
    acTypValAr.SetValue(new TypedValue((int)DxfCode.ExtendedDataRegAppName, 
                                        "MY_APP"), 1);

    // Assign the filter criteria to a SelectionFilter object
    SelectionFilter acSelFtr = new SelectionFilter(acTypValAr);

    // Request for objects to be selected in the drawing area
    PromptSelectionResult acSSPrompt;
    acSSPrompt = acDocEd.GetSelection(acSelFtr);

    // If the prompt status is OK, objects were selected
    if (acSSPrompt.Status == PromptStatus.OK)
    {
        SelectionSet acSSet = acSSPrompt.Value;

        Application.ShowAlertDialog("Number of objects selected: " +
                                    acSSet.Count.ToString());
    }
    else
    {
        Application.ShowAlertDialog("Number of objects selected: 0");
    }
}

VBA/ActiveX コード リファレンス

Sub FilterXdata()
    Dim sset As AcadSelectionSet
    Dim FilterType(1) As Integer
    Dim FilterData(1) As Variant
    Set sset = ThisDrawing.SelectionSets.Add("SS1")
 
    FilterType(0) = 0: FilterData(0) = "Circle"
    FilterType(1) = 1001: FilterData(1) = "MY_APP"
 
    sset.SelectOnScreen FilterType, FilterData
 
    MsgBox "Number of objects selected: " & sset.Count
 
    ' Remove the selection set at the end
    sset.Delete
End Sub